"""
Enhanced analyzer for PII detection.
"""
import re
from dataclasses import dataclass

@dataclass
class RecognizerResult:
    """A class representing the result of a recognized entity."""
    entity_type: str
    start: int
    end: int
    score: float
    
    @property
    def text(self):
        """This is added for compatibility, but will be None in the stub."""
        return None

class EnhancedAnalyzer:
    """
    Enhanced analyzer for PII detection.
    This is a wrapper around Presidio Analyzer with additional functionality.
    """
    def __init__(self):
        self.patterns = []
    
    def add_pattern(self, pattern):
        """Add a pattern to the analyzer."""
        self.patterns.append(pattern)
    
    def analyze(self, text, language="en"):
        """
        Analyze text to detect PII entities.
        
        Args:
            text: The text to analyze
            language: The language of the text (default: en)
            
        Returns:
            List of RecognizerResult objects representing detected entities
        """
        # This is a stub implementation that will actually do basic pattern matching
        results = []
        
        for pattern in self.patterns:
            if not hasattr(pattern, 'patterns') or not pattern.patterns:
                continue
                
            entity_type = pattern.entity_type
            
            # Go through each regex pattern
            for regex_pattern in pattern.patterns:
                try:
                    # Find all matches
                    for match in re.finditer(regex_pattern, text):
                        start = match.start()
                        end = match.end()
                        matched_text = text[start:end]
                        
                        # Create a result object
                        result = RecognizerResult(
                            entity_type=entity_type,
                            start=start,
                            end=end,
                            score=0.85  # Default score
                        )
                        
                        results.append(result)
                except re.error:
                    # Skip invalid regex patterns
                    continue
                except Exception as e:
                    # Skip any other errors
                    print(f"Error processing pattern {regex_pattern}: {e}")
                    continue
        
        return results